Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: DLLSTXSQDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-237 A Dallas TX 8958 XO TEXAS, INC. 552      
214-260 A Irving TX 8958 XO TEXAS, INC. 552      
214-279 A Dallas TX 8958 XO TEXAS, INC. 552      
214-291 A Plano TX 8958 XO TEXAS, INC. 552      
214-292 A Dallas TX 8958 XO TEXAS, INC. 552      
214-481 A Dallas TX 8958 XO TEXAS, INC. 552      
214-540 A Dallas TX 8958 XO TEXAS, INC. 552      
214-722 A Dallas TX 8958 XO TEXAS, INC. 552      
214-889 A Dallas TX 8958 XO TEXAS, INC. 552      
214-975 A Frisco EACS TX 8958 XO TEXAS, INC. 552      
214-988 A Grand Prairie EMS TX 8958 XO TEXAS, INC. 552      
469-385 A Dallas TX 8958 XO TEXAS, INC. 552      
469-519 A Allen TX 8958 XO TEXAS, INC. 552      
469-574 A Carrollton TX 8958 XO TEXAS, INC. 552      
682-292 A Euless TX 8958 XO TEXAS, INC. 552      
817-290 A Atlas TX 8958 XO TEXAS, INC. 552      
817-549 A Arlington TX 8958 XO TEXAS, INC. 552      
817-582 A Atlas TX 8958 XO TEXAS, INC. 552      
817-622 A Arlington TX 8958 XO TEXAS, INC. 552      
817-796 A Grapevine TX 8958 XO TEXAS, INC. 552      
817-887 A Fort Worth TX 8958 XO TEXAS, INC. 552      
972-692 A Dallas TX 8958 XO TEXAS, INC. 552      
972-739 A Dallas TX 8958 XO TEXAS, INC. 552      
972-767 A Plano TX 8958 XO TEXAS, INC. 552      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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